The Lost Continent

From Author Wars - https://authorwars.com/publications/the-lost-continent-248736.html

Overview:

Title: The Lost Continent
Author: Edgar Rice Burroughs
Year: 1973
Publisher: Ace Books
Price: $0.95
Pages: 144
Binding: Paperback
Type: Chapter Book
Title Reference: The Lost Continent
Notes:
Copyright page says 3rd printing, but is the 4th printing. "Fourth Ace printing: December 1973" from the 7th printing